Half to emil g



(No Model.)

H. N. POMEROY.

UAR MLB.l

Patented Jan. 27, `1891.

Hd hjes ses me News persas co., Wmo-umn., msnmnwu, o. c.

ilnrrnn Sterns PATENT OFFICE,

HENRY N. IOMEROY, OF CROSS PLAINS, IVISCONSIN, ASSIGNOR OF ONE- IIALF TO EMIL G. HERING, OF SAME PLACE.

CAR-Ax LE.

SPECIFICATION forming part of Letters Patent No. 445,199, dated January 27', 1891.

Application filed May 22, 1890. Serial No. 352.742. (No model.)

To a/ZZ whom it may concern:

Be it known that I, HENRY N. Ponnuov, a citizen of the United States, residing at Cross Plains, in the county of Dane and State of IVisconsin, have invented a new and useful Car-Aule, of which the following is a specilication.

Myinvention relates to an improvement in car-axles, and has for its object to construct a car-axle which shall combine all the advantages of the solid axle with those where the wheels are allowed to revolve independently of the axle, thereby obviating all friction between the wheels and the rails when turning curves; and it consists of certain combinations and arrangements of parts hereinafter more fully described, illustrated in the accompanying' drawings, and specifically pointed out in the appended claim.

In the accompanying drawings, Figure l is an elevation of a car-axle constructed in acK cordance with my invention. Fig. 2 is a longitudinal section of the saine.

Like letters indicate corresponding parts in Ithe figures. l

A A represent my improved caraxle, which is composed of two sections. Each of the sections at the ends, where they abut with each other, have a rounded or convex surface or face c., between which faces a steel or copper washer B is adapted to be placed to take up the wear of friction and to preserve the ends a L therefrom. Said axle-sections A A at a short distance from their convex ends a c are provided with annular grooves b b, and at the opposite end are provided with the ordinary car-wheels C, beyond which the said axlesections extend a sufficient distance to allow for a proper journaling thereof in the ordinary journal-boxes.

D represents a metallic sleeve that is placed loosely on the said axle-sections between the car-wheels C, said sleeve at each side of its center and opposite the grooves b of the axlesections being provided with threaded perforations. Plugs or pins c pass through threaded perforations in the said sleeve, for which purpose the plugs or pins are threaded from their outer ends to aslight distance below their middles, and their plain lower ends enter the annular grooves l) b of the axle-sections, thus holding the said sections together against washer B and preventing lateral wabbling` of either the axlesections or said sleeve while the car is in motion. The lower ends of the plugs being plain or unthreaded, the threads of the plug cannot be worn away by the rotations of the axle, and hence the plugs can always be readily removed.

In operation, as the car moves forward in a straight lineithe wheels revolve equally; but when the track curves the wheel upon the outer rail or that describing the greatest curve, is required to revolve faster than the one upon the inner rail. To effect this I have constructed the compound axle to operate in a sleeve, so that the wheel requiring the greater number of revolutions is allowed to revolve as fast as necessary, being entirely independent of the other as it is in motion. Thus by the particular arrangement of said sleeve and the axle-sections therein the full advantages of the solid car-wheel and axle are retained, while the great disadvantages of the same are overcome, especially that of the slipping of one of the wheels, as is necessarilythe case where the solid wheel and axle are used.

It is well known that car-axles have been formed in two sections and a sleeve thereupon; but it is not known that there has ever been patented in ear-axles the specific arrangement and construction as herein described.

Having described my improvement in caraxlcs, what I claim, and desire to secure by Letters Patent, is-

The combination, with the two axlescc tions, of the saine diameters throughout their len gths,with the exception of annular grooves formed therein near their inner ends, which ends are convened, of the loose disk or washer located between the ends, the sleeve having a plain uniform bore extending throughout the length of and forming a bearing for the axlesections, said sleeve being provided at each side of its .transverse center with threaded perforations registering with the said grooves of' the axle-sections, and plugs plain ab their i inner ends and exteliolly threaded fro m their middles to their outer ends, mounted in the perforations and having their plain inner 5 ends lying and terminating in the grooves of the axle-sections, substantially as specified.

In testimony that I claim the foregoing as l my own I have hereto affixed my signature in i presence of two witnesses.

HENRY N. POMEROY.

Vitnesses:

ADAM JURIS, JOHN KLUITSGH. 

